How is a fly different from a mosquito?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

When does a USA Potato change its nationality?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

How could a baby fall out of a twenty-story building onto the ground and live?

Find the hidden panda in the image below.

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?